flexBox {
  display: 'flex';
  background-color: darkgray;
  margin-top: 20;
}

flexItem {
  width: 20;
  height: 20;
  background-color: darkcyan;
  margin: 5;
}

.column {
  flex-direction: 'column'
}

.column-reverse{
  flex-direction:'column-reverse'
}

.row {
  flex-direction: 'row'
}

.row-reverse{
  flex-direction:'row-reverse'
}